So finnaly I got the issues uploaded, hope you have some answers:
First, the partilce controles are not responding on a easy comp. Also it does not play and after I deleded the particle system HF3 crashed.
Second one, I tried to reset the transform values. No response and than again no response of the playhead.
Last one. I did put a lot of presets into the timeline (so don`t mind the look), just to see what happens. And funny enough, it work without any problems.
So I hope this helps to find some of the problems. Looking forward to the next update coming soon.